Article: Foraminifera in Holocene marsh cycles at Borth, Cardiganshire (Wales). Contribution—Cardigan Bay Research Project

The exposed Holocene deposits at Borth include two well-marked marsh cycles. The dominant foraminifera in these sediments are marsh and estuarine forms such as Jadammina macrescens, Protelphidium depressulum, Elphidium orbiculare, Elphidium excavatum, and Ammonia beccarii var. batavus. The distribution of these spscies reflects the different stages of the cycles and thus the late post-glacial history of Borth Bog.